diff options
| author | Anton Vorontsov <cbou@mail.ru> | 2007-05-04 00:27:45 +0400 |
|---|---|---|
| committer | David Woodhouse <dwmw2@infradead.org> | 2007-07-10 11:25:44 +0100 |
| commit | 4a11b59d8283662193a9c6a9c14c58d1b9bf0617 (patch) | |
| tree | 492bf022c806ec6c554ca5f8e7c05ea6db138137 /drivers/power/power_supply.h | |
| parent | 7dcca30a32aadb0520417521b0c44f42d09fe05c (diff) | |
| download | linux-4a11b59d8283662193a9c6a9c14c58d1b9bf0617.tar.bz2 | |
[BATTERY] Universal power supply class (was: battery class)
This class is result of "external power" and "battery" classes merge,
as suggested by David Woodhouse. He also implemented uevent support.
Here how userspace seeing it now:
# ls /sys/class/power\ supply/
ac main-battery usb
# cat /sys/class/power\ supply/ac/type
AC
# cat /sys/class/power\ supply/usb/type
USB
# cat /sys/class/power\ supply/main-battery/type
Battery
# cat /sys/class/power\ supply/ac/online
1
# cat /sys/class/power\ supply/usb/online
0
# cat /sys/class/power\ supply/main-battery/status
Charging
# cat /sys/class/leds/h5400\:red-left/trigger
none h5400-radio timer hwtimer ac-online usb-online
main-battery-charging-or-full [main-battery-charging]
main-battery-full
Signed-off-by: Anton Vorontsov <cbou@mail.ru>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'drivers/power/power_supply.h')
| -rw-r--r-- | drivers/power/power_supply.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/power/power_supply.h b/drivers/power/power_supply.h new file mode 100644 index 000000000000..a9880d468ee4 --- /dev/null +++ b/drivers/power/power_supply.h @@ -0,0 +1,42 @@ +/* + * Functions private to power supply class + * + * Copyright © 2007 Anton Vorontsov <cbou@mail.ru> + * Copyright © 2004 Szabolcs Gyurko + * Copyright © 2003 Ian Molton <spyro@f2s.com> + * + * Modified: 2004, Oct Szabolcs Gyurko + * + * You may use this code as per GPL version 2 + */ + +#ifdef CONFIG_SYSFS + +extern int power_supply_create_attrs(struct power_supply *psy); +extern void power_supply_remove_attrs(struct power_supply *psy); +extern int power_supply_uevent(struct device *dev, char **envp, int num_envp, + char *buffer, int buffer_size); + +#else + +static inline int power_supply_create_attrs(struct power_supply *psy) +{ return 0; } +static inline void power_supply_remove_attrs(struct power_supply *psy) {} +#define power_supply_uevent NULL + +#endif /* CONFIG_SYSFS */ + +#ifdef CONFIG_LEDS_TRIGGERS + +extern void power_supply_update_leds(struct power_supply *psy); +extern int power_supply_create_triggers(struct power_supply *psy); +extern void power_supply_remove_triggers(struct power_supply *psy); + +#else + +static inline void power_supply_update_leds(struct power_supply *psy) {} +static inline int power_supply_create_triggers(struct power_supply *psy) +{ return 0; } +static inline void power_supply_remove_triggers(struct power_supply *psy) {} + +#endif /* CONFIG_LEDS_TRIGGERS */ |